/Engine/Source/Runtime/Engine/Classes/Engine/Engine.h
Called by internal engine systems after a travel failure has occurred
void BroadcastTravelFailure ( [UWorld](API\Runtime\Engine\Engine\UWorld) * InWorld, [ETravelFailure::Type](API\Runtime\Engine\Engine\ETravelFailure__Type) FailureType, const [FString](API\Runtime\Core\Containers\FString) & ErrorString )